PH6215 is a TiALN coated carbide grade with a hard substrate to prevent plastic deformations, which makes it the best option for machining nickel or cobalt based, heat resistant alloys.

PH6225 is a TiALN coated carbide grade recommended for heat resistant super alloys at low speeds or light interrupted cutting. Good resistance to thermal shock and notch wear makes it suitable for both long and interrupted cutting.